diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3b88a54..bc12575 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -464,6 +464,7 @@ set(SOURCE_FILES ${SOURCE_FILES}
         hooks/audio/implementations/wave_out.cpp
         hooks/audio/implementations/none.cpp
         hooks/audio/implementations/pipewire.cpp
+        hooks/develhook.cpp
         hooks/sndbhook.cpp
         hooks/avshook.cpp
         hooks/cfgmgr32hook.cpp
diff --git a/hooks/develhook.cpp b/hooks/develhook.cpp
new file mode 100644
index 0000000..039fddd
--- /dev/null
+++ b/hooks/develhook.cpp
@@ -0,0 +1,112 @@
+#include "develhook.h"
+#include "util/logging.h"
+#include "util/detour.h"
+#include "avs/core.h"
+#include <vector>
+#include <string>
+#include <sstream>
+
+
+namespace hooks::devel::avs_fs
+{
+static constexpr char needle_[] = ""; // set to "" to print all
+static avs::core::AVS_FS_LSTAT_T avs_fs_lstat_;
+static avs::core::AVS_FS_MOUNT_T avs_fs_mount_;
+static avs::core::AVS_FS_OPEN_T avs_fs_open_;
+
+int on_avs_fs_lstat(const char *path, struct avs::core::avs_stat *stat)
+{
+    if (strstr(path, needle_))
+    {
+        log_info("hooks::soundbank", "{}({})", __FUNCTION__, path);
+    }
+    return avs_fs_lstat_(path, stat);
+}
+avs::core::avs_file_t on_avs_fs_mount(const char *mountpoint, const char *fsroot, const char *fstype, void *data)
+{
+    if (strstr(fsroot, needle_))
+    {
+        log_info("hooks::soundbank", "{}({}=>{}) @{} :nullptr data?{} ", __FUNCTION__, fsroot, mountpoint, fstype, data == nullptr);
+    }
+    return avs_fs_mount_(mountpoint, fsroot, fstype, data);
+}
+avs::core::avs_file_t on_avs_fs_open(const char *name, uint16_t mode, int flags)
+{
+    if (strstr(name, needle_))
+    {
+        log_info("hooks::soundbank", "{}({}::{}) @{}", __FUNCTION__, name, mode, flags);
+    }
+    return avs_fs_open_(name, mode, flags);
+}
+void run()
+{
+    detour::trampoline(reinterpret_cast<void *>(avs::core::avs_fs_lstat), reinterpret_cast<void *>(on_avs_fs_lstat), reinterpret_cast<void **>(&avs_fs_lstat_));
+    detour::trampoline(reinterpret_cast<void *>(avs::core::avs_fs_mount), reinterpret_cast<void *>(on_avs_fs_mount), reinterpret_cast<void **>(&avs_fs_mount_));
+    detour::trampoline(reinterpret_cast<void *>(avs::core::avs_fs_open), reinterpret_cast<void *>(on_avs_fs_open), reinterpret_cast<void **>(&avs_fs_open_));
+}
+}
+
+namespace hooks::devel
+{
+void (*routine_cb_[devel_routine_last])() ={
+        [avs_fs_detour] = avs_fs::run
+};
+
+static constexpr unsigned int by_str(const char *str, int h = 0)
+{
+    return !str[h] ? 5381 : (by_str(str, h + 1) * 33) ^ str[h];
+}
+std::vector<std::string> from_env(const char *str)
+{
+    std::vector<std::string> r;
+    std::stringstream ss(getenv(str) ? getenv(str) : "");
+    std::string flag;
+
+    while (std::getline(ss, flag, ';'))
+    {
+        r.push_back(flag);
+    }
+
+    return r;
+}
+static devel_routine_t routines()
+{
+    static devel_routine_t routines_ = -1;
+    if (routines_ == static_cast<devel_routine_t>(-1))
+    {
+        routines_ = 0;
+        for (const auto &routine: from_env("SPICE_DEVEL"))
+        {
+            switch (by_str(routine.c_str()))
+            {
+            case by_str("avs_fs_detour"):
+                routines_ |= 1 << avs_fs_detour;
+                break;
+            case by_str("sndb_test"):
+                routines_ |= 1 << sndb_test;
+                break;
+            default:
+                break;
+            }
+        }
+    }
+
+    return routines_;
+}
+bool active_routine(hooks::devel::devel_routine_t val)
+{
+    return routines() & (1 << val);
+}
+void bind_routine(devel_routine_t val, void (*cb)())
+{
+    routine_cb_[val] = cb;
+}
+void entry_main()
+{
+    if (routines()) log_info("hooks:devel", "Processing subroutines..");
+    for (devel_routine_t i = 0; i < devel_routine_last; i++)
+    {
+        if (active_routine(i) && routine_cb_[i]) routine_cb_[i]();
+    }
+}
+}
\ No newline at end of file
diff --git a/hooks/develhook.h b/hooks/develhook.h
new file mode 100644
index 0000000..89eb741
--- /dev/null
+++ b/hooks/develhook.h
@@ -0,0 +1,19 @@
+#pragma once
+#include <cstdint>
+
+
+namespace hooks::devel
+{
+//_INFO: order matters, low level routines first (if you want them active during later routines)
+enum devel_routine : uint32_t
+{
+    avs_fs_detour = 0,
+    sndb_test,
+    devel_routine_last
+};
+typedef uint32_t devel_routine_t;
+
+bool active_routine(devel_routine_t val);
+void bind_routine(devel_routine_t val, void (*cb)());
+void entry_main();
+}
diff --git a/hooks/sndbhook.cpp b/hooks/sndbhook.cpp
index 01431ec..b2e81a4 100644
--- a/hooks/sndbhook.cpp
+++ b/hooks/sndbhook.cpp
@@ -1,4 +1,5 @@
 #include "sndbhook.h"
+#include "hooks/develhook.h"
 #include "util/logging.h"
 #include "util/memutils.h"
 #include "util/sigscan.h"
@@ -701,25 +702,6 @@ snd_bank *snd_bank::cache_ = nullptr;
 size_t snd_bank::cachesz_ = 0;
 avcodec::pcm_resampler_t snd_bank::resampler_ = avcodec::bmswac_resampler_s16;
 static BmsbEnumValidSoundbanks_t BmsbEnumValidSoundbanks;
-static avs::core::AVS_FS_LSTAT_T avs_fs_lstat_;
-static avs::core::AVS_FS_MOUNT_T avs_fs_mount_;
-
-int on_avs_fs_lstat(const char *path, struct avs::core::avs_stat *stat)
-{
-    if (strstr(path, "29095"))
-    {
-        log_info("hooks::soundbank", "avs_fs_lstat_({})", path);
-    }
-    return avs_fs_lstat_(path, stat);
-}
-avs::core::avs_file_t on_avs_fs_mount(const char *mountpoint, const char *fsroot, const char *fstype, void *data)
-{
-    if (strstr(fsroot, "29095"))
-    {
-        log_info("hooks::soundbank", "avs_fs_mount({}=>{}) @{} :nullptr data?{} ", fsroot, mountpoint, fstype, data == nullptr);
-    }
-    return avs_fs_mount_(mountpoint, fsroot, fstype, data);
-}
 void *on_enum_valid_soundbanks(void *song, int32_t difficulty, int32_t unk2)
 {
     // Keysounds populated into CtrlSound::Bank[2][X] = [0:s3p][1:2dx][2:_pre.2dx], always uses lowest i databank for resource confirmed valid by this function
@@ -788,8 +770,6 @@ void run_tests()
     {
         log_warning("hooks::soundbank", "MF initialization failed, skipping..");
     }
-    detour::trampoline(reinterpret_cast<void *>(avs::core::avs_fs_lstat), reinterpret_cast<void *>(on_avs_fs_lstat), reinterpret_cast<void **>(&avs_fs_lstat_));
-    detour::trampoline(reinterpret_cast<void *>(avs::core::avs_fs_mount), reinterpret_cast<void *>(on_avs_fs_mount), reinterpret_cast<void **>(&avs_fs_mount_));
 
     // Filesystem tests, s3p unpacking
     snprintf(avspath, sizeof(avspath), "data/sound/%05d", id);
@@ -921,7 +901,7 @@ void init(HINSTANCE hmodule, const char *ext)
         offset_.TX_BmsbEnumValidSoundbanks = (intptr_t) hmodule + 0xafd780;
         break;
     case offset_t::by_ext("2024082600"):
-        offset_.TX_BmsbEnumValidSoundbanks = (intptr_t) hmodule + 0x81dd40;
+        offset_.TX_BmsbEnumValidSoundbanks = (intptr_t) hmodule + 0x8eae40;
         break;
     default:
         log_warning("hooks::soundbank", "Unsupported game version({}), skipping..", ext);
@@ -940,15 +920,12 @@ void init(HINSTANCE hmodule, const char *ext)
         return;
     }
 
-    // Setup on_enum_valid_ksbd
+    // Setup on_enum_valid_ksbd and optional tests
     offset_.guard = new memutils::VProtectGuard((void *) offset_.RD_05d_2dx, SNDPATHFMTMAX);
     detour::trampoline(reinterpret_cast<void *>(offset_.TX_BmsbEnumValidSoundbanks), reinterpret_cast<void *>(on_enum_valid_soundbanks), reinterpret_cast<void **>(&BmsbEnumValidSoundbanks));
+    hooks::devel::bind_routine(hooks::devel::sndb_test, run_tests);
 
     log_info("hooks::soundbank", "Soundbank preprocessor ready");
-
-    // Tests
-    if (getenv("SPICE_TESTING"))
-        run_tests();
 }
 void deinit(HINSTANCE hmodule)
 {
diff --git a/hooks/sndbhook.h b/hooks/sndbhook.h
index c7acc35..9657ed8 100644
--- a/hooks/sndbhook.h
+++ b/hooks/sndbhook.h
@@ -1,5 +1,4 @@
 #pragma once
-
 #include <windows.h>
 
 namespace hooks::soundbank
diff --git a/launcher/launcher.cpp b/launcher/launcher.cpp
index 4aff697..82e4bab 100644
--- a/launcher/launcher.cpp
+++ b/launcher/launcher.cpp
@@ -61,6 +61,7 @@
 #include "games/qks/qks.h"
 #include "games/mfg/mfg.h"
 #include "games/museca/museca.h"
+#include "hooks/develhook.h"
 #include "hooks/avshook.h"
 #include "hooks/audio/audio.h"
 #include "hooks/debughook.h"
@@ -2159,6 +2160,9 @@ int main_implementation(int argc, char *argv[]) {
 #endif
     };
 
+    // devel start
+    hooks::devel::entry_main();
+
     // game start
     log_info("launcher", "calling game entry");
     avs::game::entry_main();